The effect of homogenization treatments on the microstructure and mechanical properties of Thermo-Span alloy

doi:10.1016/j.jmrt.2021.12.008

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	The effect of homogenization treatments on the microstructure and mechanical properties of Thermo-Span alloy
	Zhang, Weiwei 1,2; Tan, Yuanguo 3; Xin, Xin 1,2; Sun, Wenru 1,2
刊名	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
	2022
卷号	16 页码:386-397
关键词	Thermo-span alloy Laves phases Yield strength Deformation mechanism Ductility
ISSN号	2238-7854
DOI	10.1016/j.jmrt.2021.12.008
通讯作者	Xin, Xin(xxin@imr.ac.cn) ; Sun, Wenru(wrsun@imr.ac.cn)
英文摘要	The effect of homogenization treatments on the microstructure and tensile properties at room temperature and 650 degrees C of Thermo-Span alloy are systematically investigated. Laves phases with different sizes and morphologies have been obtained by using three types of homogenization treatments. The results show that the precipitation of small granular secondary Laves phases and g' phases are inhibited effectively by large blocky primary Laves phases, resulting in high plasticity and low strength of the alloy. The precipitations of secondary Laves phases and g' phases increase with the dissolution of primary Laves phases, leading to low plasticity and high strength of the alloy. The secondary Laves phases continue to increase and g' phases slightly decrease with the almost elimination of primary Laves phases, resulting in high plasticity and strength of the alloy. Hence, fewer large blocky primary Laves phases are more favorable for the best match between strength and ductility. The factors affecting the yield strength at room temperature and 650 degrees C tensile are discussed in detail. Moreover, it is first found the deformation mechanism of Laves phases i.e. the stacking faults shearing in Thermo-Span alloy. In terms of ductility, small granular secondary Laves phases are more favorable than large blocky primary Laves phases. (c) 2021 The Authors. Published by Elsevier B.V.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000753962800004
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/173339]
专题	金属研究所_中国科学院金属研究所
通讯作者	Xin, Xin; Sun, Wenru
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 3.Univ Southampton, Fac Engn & Environm, Mech Engn Grp, Southampton, Hants, England
推荐引用方式 GB/T 7714	Zhang, Weiwei,Tan, Yuanguo,Xin, Xin,et al. The effect of homogenization treatments on the microstructure and mechanical properties of Thermo-Span alloy[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2022,16:386-397.
APA	Zhang, Weiwei,Tan, Yuanguo,Xin, Xin,&Sun, Wenru.(2022).The effect of homogenization treatments on the microstructure and mechanical properties of Thermo-Span alloy.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,16,386-397.
MLA	Zhang, Weiwei,et al."The effect of homogenization treatments on the microstructure and mechanical properties of Thermo-Span alloy".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 16(2022):386-397.